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The 25-kg bar BD is attached to the two light links AB and CD and moves in the vertical plane. The lower link is subjected to a clockwise torque M = 200 N*m applied through its shaft at A. If each link has an angular velocity ω = 5 red/s as it passes the horizontal position, calculate the force which the upper link exerts on the bar at D at this instant. Also find the angular acceleration of the links at this position
A soil borrow material in its natural state in the ground has a unit weight of 118pcf. Its natural water content is 7%. What is the dry unit weight of this material?
A fully penetrating well of 30 cm diameter in an unconfined aquifer of saturated thickness 50 m was found to give the following draw down - discharge relationship under equillibium condition.
Show that the ultimate load for a strip footing under long-term conditions using the two triangle failure surfaces
Two wells had been drilled on 40-acre spacing. Well 1 is injectionand Well 2 is producing well. Downhole injection pressure is 8500psi, and bottomhole pressure in producing well is 2400 psi.
scenario this is a real case project client is considering building a four story dual usage flats suitable for both
A W18x130 section is used as a column with one end pinned and the other end is fixed against rotation but free to translate. The length is 12 ft. determine the strength of the A992 steel column.
For a 42-inch concrete stormwater pipe (n = 0.014), laid on a slope of 0.025%, carrying a flow rate of 10 cfs, what is the normal depth
As shown, a load of mass 10 kg is situated on a piston of diameter D1 = 140 mm. The piston rides on a reservoir of oil of depth h1 = 42 mm and specific gravity S = 0.8.
An 8-inch water main with a flow rate of 14 ft3/sec raises 100-feet. At the beginning of the main the pressure is 110 psig and drops to 50-psig at the end. For this water main calculate the head loss.
The cash flow associated with landscaping and maintaining a certain monument in Washington, D.C., is $100,000 now and $50,000 every 5 years forever. Determine its perpetual equivalent annual worth
Suppose the gas above the soda in a bottle of a soft drink is pure CO2 at a pressure of 2 atm. a. Estimate the pH of the soda. b. Calculate CT, the total dissolved inorganic carbon.
At A, Mary sighted on point B and measured angle BAE by turning an angle to the right. The angle BAE is 113º42’00”. Then, they measured distance AB as 300.11 ft.
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